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Replace, reuse, recycle: improving the sustainable use of phosphorus by plants
Baker, A., Ceasar, S. A., Palmer, A. J., Paterson, J. B., Qi, W., Muench, S. P., et al. (2015). Replace, reuse, recycle: improving the sustainable use of phosphorus by plants. J. Experim. Bot., 66(12), 3523–3540.
The ‘phosphorus problem’ has recently received strong interest with two distinct strands of importance. The first is that too much phosphorus (P) is entering into waste water, creating a significant economic and ecological problem. Secondly, while agricultural demand for phosphate fertilizer is increasing to maintain crop yields, rock phosphate reserves are rapidly declining. Unravelling the mechanisms by which plants sense, respond to, and acquire phosphate can address both problems, allowing the development of crop plants that are more efficient at acquiring and using limited amounts of phosphate while at the same time improving the potential of plants and other photosynthetic organisms for nutrient recapture and recycling from waste water. In this review, we attempt to synthesize these important but often disparate parts of the debate in a holistic fashion, since solutions to such a complex problem require integrated and multidisciplinary approaches that address both P supply and demand. Rapid progress has been made recently in our understanding of local and systemic signalling mechanisms for phosphate, and of expression and regulation of membrane proteins that take phosphate up from the environment and transport it within the plant. We discuss the current state of understanding of such mechanisms involved in sensing and responding to phosphate stress. We also discuss approaches to improve the P-use efficiency of crop plants and future direction for sustainable use of P, including use of photosynthetic organisms for recapture of P from waste waters.
Replace, reuse, recycle: improving the sustainable use of phosphorus by plantsBaker, A.Ceasar, S.A.Palmer, A.J.Paterson, J.B.Qi, W.Muench, S.P.Baldwin, S.A.info:doi/10.1093/jxb/erv210openurl:?ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Freference.macsur.eu%2F&genre=article&atitle=Replace%2C%20reuse%2C%20recycle%3A%20improving%20the%20sustainable%20use%20of%20phosphorus%20by%20plants&title=Journal%20of%20Experimental%20Botany&stitle=J.%20Experim.%20Bot.&issn=0022-0957%201460-2431&date=2015&volume=66&issue=12&spage=3523&epage=3540&aulast=Baker&aufirst=A.&au=Ceasar%2C%20S.A.&au=Palmer%2C%20A.J.&au=Paterson%2C%20J.B.&au=Qi%2C%20W.&au=Muench%2C%20S.P.&au=Baldwin%2C%20S.A.&id=info%3Adoi%2F10.1093%2Fjxb%2Ferv210&sid=refbase%3A...citekey:Baker_etal2015Baker, A., Ceasar, S. A., Palmer, A. J., Paterson, J. B., Qi, W., Muench, S. P., et al. (2015). Replace, reuse, recycle: improving the sustainable use of phosphorus by plants. J. Experim. Bot., 66(12), 3523-3540.2015JournalArticleReviewConservation of Natural ResourcesCrops, Agricultural/growth &development/metabolismGene Expression Regulation, PlantPhosphorus/*metabolismPlant Proteins/genetics/metabolismPlants/genetics/*metabolismFertilizersmembrane transportersnutrient recyclingphosphatephosphate signallingtranscription factorsEnglish0022-0957 1460-2431Journal of Experimental Botany2015661235233540